Electrical heating device for poultry watering bowls



J. W. GOFF Oct. 7, 1952 ELECTRICAL. HEATING DEVICE FOR POULTRY WATERING BOWLS Filed Jan. 25, 1950 IIIIIIIILLQAIII Alllllllllll MEI-WM 60m #WZZUJ Patented Oct. 7, 1952 ELECTRICAL HEATING, DEVICE FOR POULTRY WATERING BOWLS J ohn W. Gff,' StaPaul, Minn., assignor to Miller 7 Manufacturing Company, Incorporated, St. 0 Paul, Minn., a corporation of Minnesota 1 Application January 25, 1950, Serial No. 140,431

2 Claims. (01.219 38) My invention relates generally to electrical heating devices and, more specifically, toj electrical heating. devices for poultry..wateringbowls, stock feeding tanksand the like". j

A highly important object of my invention is the provision of a heating device which'may be attached to the supply pipe of a poultry watering bowl or the like, whereby the drinking water may be warmed to a pre-determined degree before entering the drinking bowl.

Another object of my invention is the provision of a feeding device, as set forth, which will maintain the water in the feeding bowl at a pre-determined temperature.

Another important object of my invention is the provision of an electrical heating device having a wire heating element imbedded in an elongated strip of rubber-like material and connected to the wires of an electrical conduit within said strip.

A still further object of my invention is the provision of means for maintaining the abovementioned heating device in surface contact with p acters indicate like parts throughout the several views:

Fig. 1 is a view in side elevation of a poultry watering bowl having my novel heating device attached thereto, some parts being broken away i and some parts being shown in section;

Fig. 2 is a plan of the device of Fig. 1; and

Fig. 3 is an enlarged view in plan of the heating strip of my invention, some parts being broken away and some parts being shown in section.

Referring with greater particularity to the drawings, the numeral I indicates, in its entirety, aninverted U-shaped rigid sup-ply pipe section having one relatively long leg 2 and one relatively short leg 3. The long leg 2 terminates at its base in an elbow 4 to which is secured by welding or the like a looped supporting member 5. A laterally-extending coupling nipple 6 has threaded engagement with the elbow 4; and a conduit 1, preferably in the nature of a hose, is

adapted'to be "connected thereto and deliver"wa-' ter therethrough'from a suitable source of supply not shown.

The short leg 3 terminates in-substantially-parallel laterally offset relationship to thelong leg 2 and in substantial spaced relation to the ground when the supportihg'member 5 is in engagement with the ground surface as indicated in Fig. l; The lower end of the short leg 3 is threaded to receive a coupling 8 which couples a downwardlyprojecting pipe extension 9 thereto. The lower end of the pipe extension 9 is equipped with an automatic valve mechanismfor controlling the flow from the rigid pipe section I into a cup or bowl H3 and maintaining a substantially constant fluid level in the same. The valve mechanism is not shown but is contained within a tubular element H, the lower end of which s secured to the intermediate bottom portion of the bowl [0. The automatic valve mechanism does not constitute a part of the instant invention. For this reason, illustration thereof is not deemed necessary. However, said valve mechanism is fully disclosed in my copending United States patent application S. N. 21,626, filed April 1'7, 1948, and entitled Device for Watering Animals, Poultry, and the Like.

For heating the water in the supply pipe section I and in the bowl I9, I provide an electrical heating device l2 comprising an elongated moulded strip I3 of rubber or the like having imbedded therein a generally U-shaped section of electrical resistance wire I4 such as Nichrome or the like. As shown, the heating wire l4 extends longitudinally of the strip 13, the intermediate portion thereof being closely inwardly spaced from one end thereof as indicated at 15. At its opposite end, strip 13 has imbedded therein one end of an electric conduit I6 carrying two conductor wires I1, one each of which is soldered or otherwise secured to an opposite end of the heating wire [4 as indicated at 18. The arrange-- ment of the connections l8 and the imbedding of the end of the conduit I6 in the strip 13 protects the heating device from being short-circuited due to moisture which might otherwise come into contact with bare wires.

To utilize my novel heating device in the heating of drinking water, the heater I2 is disposed along the supply pipe section I in surface contact therewith and fastened thereto by any suitable means such as a winding of friction tape or the like I9. The strip [3 is sufficiently long to permit the free end thereof to extend downwardly from the end of the shorter leg 3 into the bowl or reservoir I0 so that the free end of the strip i3 is submerged in the drinking water A therein. When current is applied to the conductor wires l1, heat generated in the strip I 3 will be conducted to the supply pipe section I and to the water A in the bowl [0. By this means, the drinkingwater; is warmed to a predetermined degree before it enters the bowllll andis maintained as long as necessary.

While I have shown a commercial embodiment of my invention, it will be understood that the same is capable of modification without depar-' ture from the spirit and scope of the invention as defined in the claims.

What I claim is:

1. In a device of the class described, a liquid reservoir, a supply pipe for the reservoir, said reservoir depending from the supply pipe in spaced relation to the ground, and a heating,

'REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,936,391 Harrower Nov. 21, 1933 2,048,880 Morgan July 28, 1936 2,052,644 Murphy Sept. 1, 1936 2,201,901 Keen May 21, 1940 2,329,766 Jacobsen Sept, 21,1943 2,464,052 Numrich Mar, 8, 1949 2,479,355 Hemker Aug. 16,1949

. "OTHER- REFERENCES Modern Plastics, pages 108-9, Aug 1946; 

